OFFSET
1,1
COMMENTS
The terms are found by finding the digit sum of twin prime pairs and then dividing the digit sum by the total number of digits in the twin primes combined.
LINKS
Chris Caldwell, The First 1,008 Twin Primes
EXAMPLE
The digit sum of the twin primes pairs 41 and 43 is 12 which when divided by 4 gives 3, a prime, which is the first term in the sequence. The digit sum of the twin prime pairs 347 and 349 is 30 which when divided by 6 gives 5, a prime, which is the fourth term in the sequence. The digit sum of the twin prime pairs 431 and 433 is 18 which when divided by 6 gives 3, a prime, which is the fifth term in the sequence. The digit sum of the twin prime pairs 857 and 859 is 42 which when divided by 6 gives 7, a prime, which is the ninth term in the sequence.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Parthasarathy Nambi, Oct 14 2009
EXTENSIONS
Terms beyond a(11) from R. J. Mathar, Jan 25 2010
STATUS
approved